<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">
        首页
      </el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary" @click="setRoleDialogVisible">添加角色</el-button>
        </el-col>
      </el-row>
      <el-table :data="rolelist" :border="true" :stripe="true">
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row :class="['bdbottom', i1 === 0 ? 'bdtop' : '','vcenter']" v-for="(item1, i1) in scope.row.children" :key="item1.id">
              <el-col :span="5">
                <el-tag :closable="true" @close="removeRightById(scope.row, item1.id)">{{item1.authName}}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row :class="[i2 === 0 ? '' : 'bdtop','vcenter']" v-for="(item2, i2) in item1.children" :key="item2.id">
                  <el-col :span="6">
                    <el-tag type="success" :closable="true" @close="removeRightById(scope.row, item2.id)">{{item2.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag type="warning" v-for="(item3) in item2.children" :key="item3.id" :closable="true" @close="removeRightById(scope.row, item3.id)">
                      {{item3.authName}}
                    </el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-search" size="mini" @click="showEdit(scope.row.id)">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeRole(scope.row.id)">删除</el-button>
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRightDialog(scope.row)">分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%" @close="setRightDialogClosed" >
      <el-tree :data="rightslist" :props="treeProps" :show-checkbox="true" node-key="id" :default-expand-all="true"
      :default-checked-keys="defKeys" ref="treeRef"></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
    <el-dialog
        title="添加权限"
        :visible.sync="addRoleDialogVisible"
        width="60%"
        @close="addRoleDialogClosed">
        <el-form :model="addRole" :rules="addRoleRules" ref="addRoleRef" label-width="80px" >
    <el-form-item label="角色名称" prop="roleName">
    <el-input v-model="addRole.roleName"></el-input>
    </el-form-item>
    <el-form-item label="角色描述" prop="roleDesc">
    <el-input v-model="addRole.roleDesc"></el-input>
    </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
        <el-button @click="addRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRolesBy">确 定</el-button>
  </span>
</el-dialog>
<el-dialog
  title="编辑角色"
  :visible.sync="editDialogVisible"
  width="50%"
  :before-close="editHandleClose">
   <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="100px" >
    <el-form-item label="角色名称" prop="roleName">
    <el-input v-model="editForm.roleName" disabled></el-input>
    </el-form-item>
    <el-form-item label="角色描述" prop="roleDesc">
    <el-input v-model="editForm.roleDesc"></el-input>
    </el-form-item>
   </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editFormPut">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    return {
      rolelist: [],
      setRightDialogVisible: false,
      addRoleDialogVisible: false,
      editDialogVisible: false,
      rightslist: [],
      treeProps: {
        label: 'authName',
        children: 'children'
      },
      addRole: {
        roleName: '',
        roleDesc: ''
      },
      editForm: {},
      defKeys: [],
      roleId: '',
      addRoleRules: {
        roleName: [
          {
            required: true,
            message: '请输入权限名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '权限名在3到10之间',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          {
            required: true,
            message: '请输入权限描述',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 20,
            message: '描述在3到20之间',
            trigger: 'blur'
          }
        ]
      },
      editFormRules: {
        roleDesc: [
          {
            required: true,
            message: '请输入权限描述',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created () {
    this.getRolesList()
  },
  methods: {
    async getRolesList () {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      this.rolelist = res.data
    },
    async removeRightById (role, rightId) {
      const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消了删除')
      }
      const { data: res } = await this.$http.delete('roles/' + role.id + '/rights/' + rightId)
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败')
      }
      role.children = res.data
    },
    async showSetRightDialog (role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) return this.$message.error('权限获取失败')
      this.rightslist = res.data
      this.getLeafKeys(role, this.defKeys)
      this.setRightDialogVisible = true
    },
    getLeafKeys (node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item =>
        this.getLeafKeys(item, arr))
    },
    setRightDialogClosed () {
      this.defKeys = []
    },
    async allotRights () {
      const keys = [
        this.$refs.treeRef.getCheckedKeys(),
        this.$refs.treeRef.getHalfCheckedKeys()
      ]
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post('roles/' + this.roleId + '/rights', { rids: idStr })
      if (res.meta.status !== 200) {
        return this.$message.error('更新权限失败')
      }
      this.$message.success('分配权限成功')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
    setRoleDialogVisible () {
      this.addRoleDialogVisible = true
    },
    addRoleDialogClosed () {
      this.$refs.addRoleRef.resetFields()
    },
    addRolesBy () {
      this.$refs.addRoleRef.validate(async valid => {
        if (!valid) return 0
        const { data: res } = await this.$http.post('roles', {
          roleName: this.addRole.roleName,
          roleDesc: this.addRole.roleDesc
        })
        if (res.meta.status !== 201) {
          return this.$message.error('添加规则失败')
        }
        this.$message.success('添加成功')
        this.getRolesList()
        this.addRoleDialogVisible = false
      })
    },
    async removeRole (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getRolesList()
    },
    editHandleClose () {
      this.$refs.editFormRef.resetFields()
    },
    async showEdit (id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editFormPut () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return 0
        const { data: res } = await this.$http.put('roles/' + this.editForm.roleId, { roleName: this.editForm.roleName, roleDesc: this.editForm.roleDesc })
        if (res.meta.status !== 200) {
          return this.$message.error('修改失败')
        }
        this.$message.success('修改成功')
        this.getRolesList()
        this.editDialogVisible = false
      })
    }
  }
}
</script>
<style lang="less" scoped>
.el-tag{
  margin: 7px;
}
.bdtop{
  border-top: 1px solid #eee;
}
.bdbottom{
  border-bottom: 1px solid #eee ;
}
.vcenter{
  display: flex;
  align-items: center;
}
</style>
